DE20214644U1 - Mould clamp for pre-stressed concrete component has cylinder with piston and claws - Google Patents

Mould clamp for pre-stressed concrete component has cylinder with piston and claws

Info

Publication number
DE20214644U1
DE20214644U1 DE20214644U DE20214644U DE20214644U1 DE 20214644 U1 DE20214644 U1 DE 20214644U1 DE 20214644 U DE20214644 U DE 20214644U DE 20214644 U DE20214644 U DE 20214644U DE 20214644 U1 DE20214644 U1 DE 20214644U1
Authority
DE
Germany
Prior art keywords
clamping
tensioning
claws
clamping device
piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE20214644U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PAUL MASCHINENFABRIK GmbH and Co KG
Original Assignee
PAUL MASCHINENFABRIK GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PAUL MASCHINENFABRIK GmbH and Co KG filed Critical PAUL MASCHINENFABRIK GmbH and Co KG
Priority to DE20214644U priority Critical patent/DE20214644U1/en
Publication of DE20214644U1 publication Critical patent/DE20214644U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • E04C5/12—Anchoring devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
    • B28B23/043—Wire anchoring or tensioning means for the reinforcements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E04G21/121—Construction of stressing jacks

Abstract

A pre-stressed concrete railway tie ('sleeper') or other pre-stressed short concrete component is fabricated in a mould (1) under the influence of a spindle (4) operated clamping assembly (5). The clamp panels (2) have grooves (2a) for side lifting-claws (3a). The clamp has esp. a support (6) to which one or more clamping cylinders (10) are attached. Each cylinder has a sliding (6a) piston (10a) which is strong enough to impart a pre-determined moment on the lifting claws and grooves (2a).

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (10)

1. Spannvorrichtung zum vollmechanischen Spannen von Spanngliedern für Spannbetonbauteile, vornehmlich Spannbetonschwellen, wobei die Spannglieder (5) an Schrauben/Spannspindeln (4) außerhalb des Spannrahmens/der Spannform auf einer gemeinsamen Spannplatte (2) in engem Abstand voneinander verankert werden und die Spannplatte mit Nuten (2a) ausgestattet ist, die ein seitliches Eingreifen von Klauen (3a) einer Spannpresse gestattet, mit denen die Spannplatte angehoben (gespannt) werden kann, und die mit Abstützschrauben (7) ausgestattet sind, um sie in gespannter Lage durch Anziehen der Schrauben mittels Schraubern (8) fixieren zu können, dadurch gekennzeichnet, dass einer oder mehrere Spannzylinder (10) an einer Abstützung (6) befestigt sind, in der der Kolben (10a) entsprechend lang geführt ist (6a), und der Kolben entsprechend stabil ist, so dass ein Moment M aufgrund eines einzelnen brechenden Spanngliedes aufgenommen werden kann und die mit einer Zugvorrichtung (3) mit 2 Klauen (3a) ausgestattet ist, um eine Spannplatte (2) mit Nuten (2a) zu hintergreifen, um diese anzuspannen (Fig. 1).1.Tensioning device for fully mechanical tensioning of tendons for prestressed concrete components, primarily prestressed concrete sleepers, whereby the tendons ( 5 ) are anchored to screws / spindles ( 4 ) outside the tensioning frame / tensioning form on a common tensioning plate ( 2 ) at a close distance from each other and the tensioning plate with Grooves ( 2 a) is provided, which allows lateral engagement of claws ( 3 a) of a clamping press, with which the clamping plate can be lifted (tensioned), and which are equipped with support screws ( 7 ) to tighten them in a tensioned position to be able to fix the screws by means of screwdrivers ( 8 ), characterized in that one or more clamping cylinders ( 10 ) are fastened to a support ( 6 ) in which the piston ( 10 a) is guided for a corresponding length ( 6 a), and the Piston is correspondingly stable, so that a moment M can be absorbed due to a single breaking tendon and that with a Zugvorr Seal ( 3 ) is equipped with 2 claws ( 3 a) to engage behind a clamping plate ( 2 ) with grooves ( 2 a) in order to tighten them ( Fig. 1). 2. Spannvorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass diese mittels Schraubern (8) ausgestattet ist, um die Abstützschrauben (7) der Spannplatte (2) nach dem Spannvorgang anziehen zu können um die Spannplatte in gespannter Position halten zu können bzw. um die Abstützschrauben zum Übertragen der Spannkraft losdrehen zu können.2. Clamping device according to claim 1, characterized in that it is equipped by means of screwdrivers ( 8 ) in order to be able to tighten the support screws ( 7 ) of the clamping plate ( 2 ) after the clamping process in order to be able to hold the clamping plate in a clamped position or to To be able to loosen the support screws to transmit the clamping force. 3. Spannvorrichtung gemäß Anspruch 1 und 2, dadurch gekennzeichnet, dass die Schrauber auf Linearführungen (16) gelagert sind, die mit Überwachungselementen (15) ausgestattet sind, um erfolgreiches Auffinden auf die Abstützschrauben zu gewährleisten.3. Clamping device according to claim 1 and 2, characterized in that the screwdrivers are mounted on linear guides ( 16 ) which are equipped with monitoring elements ( 15 ) in order to ensure successful locating on the support screws. 4. Spannvorrichtung gemäß Anspruch 1-3, dadurch gekennzeichnet, dass die Klauen (3a) hydraulisch, pneumatisch oder mittels Motor (13) automatisch geöffnet und geschlossen werden. Wahlweise kann die Spannvorrichtung auch mit starren Klauen ausgestattet werden und die gesamte Spannvorrichtung wird von oben oder unten zum Ankuppeln über die Nuten (2a) geschoben.4. Clamping device according to claims 1-3, characterized in that the claws ( 3 a) hydraulically, pneumatically or by means of a motor ( 13 ) are automatically opened and closed. Optionally, the clamping device can also be equipped with rigid claws and the entire clamping device is pushed from above or below to couple over the grooves ( 2 a). 5. Spannvorrichtung gemäß Anspruch 1-4, dadurch gekennzeichnet, dass der Kolben des Spannzylinders (10a) mittels Linearmessvorrichtung (19) ausgestattet ist, um Bruchteile von Millimetern anspannen zu können, um beim Übertragen der Spannkraft die Spannglieder nicht zu überlasten.5. Clamping device according to claims 1-4, characterized in that the piston of the clamping cylinder ( 10 a) is equipped by means of a linear measuring device ( 19 ) in order to clamp fractions of a millimeter so as not to overload the tendons when the clamping force is transmitted. 6. Spannvorrichtung gemäß Anspruch 1-5, dadurch gekennzeichnet, dass die Spannpresse mit Spannzylinder (10) und Abstützung (6) auf einem Wagen (11) sitzt, der mittels Hydraulik-/Pneumatikzylinder oder Servomotor (14) auf einem Gestell (12) zur und von der Form/Spannrahmen bewegt wird (Fig. 2).6. Clamping device according to claims 1-5, characterized in that the clamping press with clamping cylinder ( 10 ) and support ( 6 ) is seated on a carriage ( 11 ) which by means of hydraulic / pneumatic cylinder or servo motor ( 14 ) on a frame ( 12 ) is moved to and from the mold / stenter ( Fig. 2). 7. Spannvorrichtung gemäß Anspruch 1-6, dadurch gekennzeichnet, dass das Gestell (12) wahlweise fahrbar ausgeführt und mittels entsprechendem Positionierantrieb (17) ausgestattet wird, um mehrere nebeneinanderliegende 1-achsige vorzuspannende Spannbetonelemente/Schwellen nacheinander anfahren und vorspannen zu können.7. Clamping device according to claims 1-6, characterized in that the frame ( 12 ) is optionally designed to be mobile and equipped with a corresponding positioning drive ( 17 ) in order to be able to approach and prestress several adjacent 1-axis prestressed concrete elements / sleepers one after the other. 8. Spannvorrichtung gemäß Anspruch 1-7 dadurch gekennzeichnet, dass mittels Messvorrichtung (18), z. B. Lichtschranke, die genaue Position vor der Spannplatte erreicht werden kann.8. Clamping device according to claims 1-7, characterized in that by means of measuring device ( 18 ), for. B. light barrier, the exact position can be reached in front of the clamping plate. 9. Spannvorrichtung gemäß Anspruch 1-8, dadurch gekennzeichnet, dass die Zugvorrichtung (3) eingeengt gelenkig gelagert ist, (25), um einerseits Verformungen des Spannrahmens während des Spannens/Entspannens ausgleichen zu können, andererseits das Biegemoment M, aufgrund eines eventuellen Spanngliedbruches, auf den Kolben (10a) übertragen zu können.9. Tensioning device according to claims 1-8, characterized in that the pulling device ( 3 ) is articulated, ( 25 ), on the one hand to be able to compensate for deformations of the tensioning frame during tensioning / relaxation, and on the other hand the bending moment M, due to a possible tendon breakage to be able to transfer to the piston ( 10 a). 10. Spannvorrichtung gemäß Anspruch 1-9, dadurch gekennzeichnet, dass mehrere Spannpressen der vorgestellten Bauweise, gleichzeitig und synchron betrieben werden, um bei 2-achsigen Spannbetonfertigteilen, insbesondere Spannbetonrahmenschwellen, beim Übertragen der Spannkraft, Risse zu verhindern.10. Clamping device according to claims 1-9, characterized in that several clamping presses of the design presented are operated simultaneously and synchronously are used in the case of 2-axis pre-stressed concrete parts, in particular pre-stressed concrete frame sleepers, to prevent cracks when transmitting the tension.
DE20214644U 2002-09-21 2002-09-21 Mould clamp for pre-stressed concrete component has cylinder with piston and claws Expired - Lifetime DE20214644U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20214644U DE20214644U1 (en) 2002-09-21 2002-09-21 Mould clamp for pre-stressed concrete component has cylinder with piston and claws

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20214644U DE20214644U1 (en) 2002-09-21 2002-09-21 Mould clamp for pre-stressed concrete component has cylinder with piston and claws

Publications (1)

Publication Number Publication Date
DE20214644U1 true DE20214644U1 (en) 2003-02-13

Family

ID=7975334

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20214644U Expired - Lifetime DE20214644U1 (en) 2002-09-21 2002-09-21 Mould clamp for pre-stressed concrete component has cylinder with piston and claws

Country Status (1)

Country Link
DE (1) DE20214644U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109693309A (en) * 2019-03-01 2019-04-30 天津银龙预应力材料股份有限公司 A kind of novel pre-stressed rail plate tension device
CN114753644A (en) * 2021-09-28 2022-07-15 河南省工建集团有限责任公司 Tensioning device for tensioning construction after bonding of large-span prestressed beam and construction method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109693309A (en) * 2019-03-01 2019-04-30 天津银龙预应力材料股份有限公司 A kind of novel pre-stressed rail plate tension device
CN109693309B (en) * 2019-03-01 2024-02-13 天津银龙预应力材料股份有限公司 Novel prestressing force track board stretch-draw device
CN114753644A (en) * 2021-09-28 2022-07-15 河南省工建集团有限责任公司 Tensioning device for tensioning construction after bonding of large-span prestressed beam and construction method
CN114753644B (en) * 2021-09-28 2024-03-19 河南省工建集团有限责任公司 Tensioning device for tensioning construction of large-span prestressed beam after bonding and construction method

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20030320

R150 Term of protection extended to 6 years

Effective date: 20051007

R151 Term of protection extended to 8 years

Effective date: 20081119

R158 Lapse of ip right after 8 years

Effective date: 20110401